J Agric Food Syst Community Dev
January 2022
Community supported agriculture (CSA) schemes (programs) provide an alternative means for obtaining produce, through direct purchase from farms. They are also often driven by a vision of transforming the current mainstream food system and seek to build a community of people who support this vision. Social capital refers to the networks and ties between people and groups and the impact of these ties on access to influence, information, opportunity, and ability to organize.
View Article and Find Full Text PDFAgriculture is challenged to produce healthy food and to contribute to cleaner energy whilst mitigating climate change and protecting ecosystems. To achieve this, policy-driven scenarios need to be evaluated with available data and models to explore trade-offs with robust accounting for the uncertainty in predictions. We developed a novel model ensemble using four complementary state-of-the-art agroecosystems models to explore the impacts of land management change.
View Article and Find Full Text PDFAccurate volume delineation plays an essential role in radiotherapy. Contouring is a potential source of uncertainties in radiotherapy treatment planning that could affect treatment outcomes. Therefore, reducing the degree of contouring uncertainties is crucial.
View Article and Find Full Text PDFRep Pract Oncol Radiother
September 2020
Purpose: To study normal lung tissue (NLT) complications in magnetic resonance (MR) image based linac and conventional radiotherapy (RT) techniques.
Materials And Methods: The Geant4 toolkit was used to simulate a 6 MV photon beam. A homogenous magnetic field of 1.
New invading pathogen strains must compete with endemic pathogen strains to emerge and spread. As disease control measures are often non-specific, that is, they do not distinguish between strains, applying control not only affects the invading pathogen strain but the endemic as well. We hypothesize that the control of the invasive strain could be compromised due to the non-specific nature of the control.
View Article and Find Full Text PDFPurpose: The aim of this work is to investigate the influence of an external magnetic field (MF) on The American Association of Physicists in Medicine (AAPM) No. 43 Report (TG-43) parameters for Ir and Co high dose rate (HDR) brachytherapy sources using Monte Carlo (MC) simulation methods.
Materials And Methods: We used the Geant4 toolkit (version 10.
In recent years, visitation to U.S. National Parks has been increasing, with the majority of this increase occurring in a subset of parks.
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